I picked up this labeller for $5 at a garage sale last weekend. I've had this idea about using one to back up a seed list or passphrase for a while and wanted to try it out.
It runs on AA batteries and feels like something that you used to use before the internet became mainstream. There are a lot of boomers in my area so I see them for sale in a lot of the shopping malls. I just like how they don't need to be connected to the internet.
I played around with the settings. There's a floppy disk button which I think means to simply save what you've written. There's a few fonts and borders, different sizes and lots of symbols (passphrase!).
I printed off a TEST SEED and hid it in a few places like this pen:
And this whiteboard:
The possibilities are endless!